Adjustable ventilation nozzle



FIG. 1 is a rear perspective view of an adjustable ventilation nozzle showing my new design;

FIG. 2 is a front perspective view thereof showing the nozzle portion in a different position;

FIG. 3 is another rear perspective view thereof showing the nozzle portion in a third position; and

FIG. 4 is another front perspective view thereof showing the nozzle portion in a fourth position. 

The ornamental design for an adjustable ventilation nozzle, as shown. 